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Equity (Details 1) - USD ($)
shares in Millions, $ in Millions
6 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Equity, Class of Treasury Stock [Line Items]    
Cost of shares repurchased $ 223.9 $ 14.6
Stock Repurchase Program, Authorized Amount 1,000.0  
Stock Repurchase Program, Remaining Authorized Repurchase Amount 907.0  
General repurchase program [Member]    
Equity, Class of Treasury Stock [Line Items]    
Cost of shares repurchased $ 192.3 $ 0.0
Number of shares repurchased 1.4 0.0
Withholding in satisfaction of taxes on vested equity award [Member]    
Equity, Class of Treasury Stock [Line Items]    
Cost of shares repurchased $ 31.6 $ 14.6
Number of shares repurchased 0.3 0.2